tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _PPC_BOOT_DCR_H_
2#define _PPC_BOOT_DCR_H_
3
4#define mfdcr(rn) \
5 ({ \
6 unsigned long rval; \
7 asm volatile("mfdcr %0,%1" : "=r"(rval) : "i"(rn)); \
8 rval; \
9 })
10#define mtdcr(rn, val) \
11 asm volatile("mtdcr %0,%1" : : "i"(rn), "r"(val))
12#define mfdcrx(rn) \
13 ({ \
14 unsigned long rval; \
15 asm volatile("mfdcrx %0,%1" : "=r"(rval) : "r"(rn)); \
16 rval; \
17 })
18
19/* 440GP/440GX SDRAM controller DCRs */
20#define DCRN_SDRAM0_CFGADDR 0x010
21#define DCRN_SDRAM0_CFGDATA 0x011
22
23#define SDRAM0_READ(offset) ({\
24 mtdcr(DCRN_SDRAM0_CFGADDR, offset); \
25 mfdcr(DCRN_SDRAM0_CFGDATA); })
26#define SDRAM0_WRITE(offset, data) ({\
27 mtdcr(DCRN_SDRAM0_CFGADDR, offset); \
28 mtdcr(DCRN_SDRAM0_CFGDATA, data); })
29
30#define SDRAM0_B0CR 0x40
31#define SDRAM0_B1CR 0x44
32#define SDRAM0_B2CR 0x48
33#define SDRAM0_B3CR 0x4c
34
35static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR,
36 SDRAM0_B2CR, SDRAM0_B3CR };
37
38#define SDRAM_CONFIG_BANK_ENABLE 0x00000001
39#define SDRAM_CONFIG_SIZE_MASK 0x000e0000
40#define SDRAM_CONFIG_BANK_SIZE(reg) \
41 (0x00400000 << ((reg & SDRAM_CONFIG_SIZE_MASK) >> 17))
42
43/* 440GP External Bus Controller (EBC) */
44#define DCRN_EBC0_CFGADDR 0x012
45#define DCRN_EBC0_CFGDATA 0x013
46#define EBC_NUM_BANKS 8
47#define EBC_B0CR 0x00
48#define EBC_B1CR 0x01
49#define EBC_B2CR 0x02
50#define EBC_B3CR 0x03
51#define EBC_B4CR 0x04
52#define EBC_B5CR 0x05
53#define EBC_B6CR 0x06
54#define EBC_B7CR 0x07
55#define EBC_BXCR(n) (n)
56#define EBC_BXCR_BAS 0xfff00000
57#define EBC_BXCR_BS 0x000e0000
58#define EBC_BXCR_BANK_SIZE(reg) \
59 (0x100000 << (((reg) & EBC_BXCR_BS) >> 17))
60#define EBC_BXCR_BU 0x00018000
61#define EBC_BXCR_BU_OFF 0x00000000
62#define EBC_BXCR_BU_RO 0x00008000
63#define EBC_BXCR_BU_WO 0x00010000
64#define EBC_BXCR_BU_RW 0x00018000
65#define EBC_BXCR_BW 0x00006000
66#define EBC_B0AP 0x10
67#define EBC_B1AP 0x11
68#define EBC_B2AP 0x12
69#define EBC_B3AP 0x13
70#define EBC_B4AP 0x14
71#define EBC_B5AP 0x15
72#define EBC_B6AP 0x16
73#define EBC_B7AP 0x17
74#define EBC_BXAP(n) (0x10+(n))
75#define EBC_BEAR 0x20
76#define EBC_BESR 0x21
77#define EBC_CFG 0x23
78#define EBC_CID 0x24
79
80/* 440GP Clock, PM, chip control */
81#define DCRN_CPC0_SR 0x0b0
82#define DCRN_CPC0_ER 0x0b1
83#define DCRN_CPC0_FR 0x0b2
84#define DCRN_CPC0_SYS0 0x0e0
85#define CPC0_SYS0_TUNE 0xffc00000
86#define CPC0_SYS0_FBDV_MASK 0x003c0000
87#define CPC0_SYS0_FWDVA_MASK 0x00038000
88#define CPC0_SYS0_FWDVB_MASK 0x00007000
89#define CPC0_SYS0_OPDV_MASK 0x00000c00
90#define CPC0_SYS0_EPDV_MASK 0x00000300
91/* Helper macros to compute the actual clock divider values from the
92 * encodings in the CPC0 register */
93#define CPC0_SYS0_FBDV(reg) \
94 ((((((reg) & CPC0_SYS0_FBDV_MASK) >> 18) - 1) & 0xf) + 1)
95#define CPC0_SYS0_FWDVA(reg) \
96 (8 - (((reg) & CPC0_SYS0_FWDVA_MASK) >> 15))
97#define CPC0_SYS0_FWDVB(reg) \
98 (8 - (((reg) & CPC0_SYS0_FWDVB_MASK) >> 12))
99#define CPC0_SYS0_OPDV(reg) \
100 ((((reg) & CPC0_SYS0_OPDV_MASK) >> 10) + 1)
101#define CPC0_SYS0_EPDV(reg) \
102 ((((reg) & CPC0_SYS0_EPDV_MASK) >> 8) + 1)
103#define CPC0_SYS0_EXTSL 0x00000080
104#define CPC0_SYS0_RW_MASK 0x00000060
105#define CPC0_SYS0_RL 0x00000010
106#define CPC0_SYS0_ZMIISL_MASK 0x0000000c
107#define CPC0_SYS0_BYPASS 0x00000002
108#define CPC0_SYS0_NTO1 0x00000001
109#define DCRN_CPC0_SYS1 0x0e1
110#define DCRN_CPC0_CUST0 0x0e2
111#define DCRN_CPC0_CUST1 0x0e3
112#define DCRN_CPC0_STRP0 0x0e4
113#define DCRN_CPC0_STRP1 0x0e5
114#define DCRN_CPC0_STRP2 0x0e6
115#define DCRN_CPC0_STRP3 0x0e7
116#define DCRN_CPC0_GPIO 0x0e8
117#define DCRN_CPC0_PLB 0x0e9
118#define DCRN_CPC0_CR1 0x0ea
119#define DCRN_CPC0_CR0 0x0eb
120#define CPC0_CR0_SWE 0x80000000
121#define CPC0_CR0_CETE 0x40000000
122#define CPC0_CR0_U1FCS 0x20000000
123#define CPC0_CR0_U0DTE 0x10000000
124#define CPC0_CR0_U0DRE 0x08000000
125#define CPC0_CR0_U0DC 0x04000000
126#define CPC0_CR0_U1DTE 0x02000000
127#define CPC0_CR0_U1DRE 0x01000000
128#define CPC0_CR0_U1DC 0x00800000
129#define CPC0_CR0_U0EC 0x00400000
130#define CPC0_CR0_U1EC 0x00200000
131#define CPC0_CR0_UDIV_MASK 0x001f0000
132#define CPC0_CR0_UDIV(reg) \
133 ((((reg) & CPC0_CR0_UDIV_MASK) >> 16) + 1)
134#define DCRN_CPC0_MIRQ0 0x0ec
135#define DCRN_CPC0_MIRQ1 0x0ed
136#define DCRN_CPC0_JTAGID 0x0ef
137
138#define DCRN_MAL0_CFG 0x180
139#define MAL_RESET 0x80000000
140
141/* 440EP Clock/Power-on Reset regs */
142#define DCRN_CPR0_ADDR 0xc
143#define DCRN_CPR0_DATA 0xd
144#define CPR0_PLLD0 0x60
145#define CPR0_OPBD0 0xc0
146#define CPR0_PERD0 0xe0
147#define CPR0_PRIMBD0 0xa0
148#define CPR0_SCPID 0x120
149#define CPR0_PLLC0 0x40
150
151/* 405GP Clocking/Power Management/Chip Control regs */
152#define DCRN_CPC0_PLLMR 0xb0
153#define DCRN_405_CPC0_CR0 0xb1
154#define DCRN_405_CPC0_CR1 0xb2
155#define DCRN_405_CPC0_PSR 0xb4
156
157/* 405EP Clocking/Power Management/Chip Control regs */
158#define DCRN_CPC0_PLLMR0 0xf0
159#define DCRN_CPC0_PLLMR1 0xf4
160#define DCRN_CPC0_UCR 0xf5
161
162/* 440GX/405EX Clock Control reg */
163#define DCRN_CPR0_CLKUPD 0x020
164#define DCRN_CPR0_PLLC 0x040
165#define DCRN_CPR0_PLLD 0x060
166#define DCRN_CPR0_PRIMAD 0x080
167#define DCRN_CPR0_PRIMBD 0x0a0
168#define DCRN_CPR0_OPBD 0x0c0
169#define DCRN_CPR0_PERD 0x0e0
170#define DCRN_CPR0_MALD 0x100
171
172#define DCRN_SDR0_CONFIG_ADDR 0xe
173#define DCRN_SDR0_CONFIG_DATA 0xf
174
175/* SDR read/write helper macros */
176#define SDR0_READ(offset) ({\
177 mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \
178 mfdcr(DCRN_SDR0_CONFIG_DATA); })
179#define SDR0_WRITE(offset, data) ({\
180 mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \
181 mtdcr(DCRN_SDR0_CONFIG_DATA, data); })
182
183#define DCRN_SDR0_UART0 0x0120
184#define DCRN_SDR0_UART1 0x0121
185#define DCRN_SDR0_UART2 0x0122
186#define DCRN_SDR0_UART3 0x0123
187
188
189/* CPRs read/write helper macros - based off include/asm-ppc/ibm44x.h */
190
191#define DCRN_CPR0_CFGADDR 0xc
192#define DCRN_CPR0_CFGDATA 0xd
193
194#define CPR0_READ(offset) ({\
195 mtdcr(DCRN_CPR0_CFGADDR, offset); \
196 mfdcr(DCRN_CPR0_CFGDATA); })
197#define CPR0_WRITE(offset, data) ({\
198 mtdcr(DCRN_CPR0_CFGADDR, offset); \
199 mtdcr(DCRN_CPR0_CFGDATA, data); })
200
201
202
203#endif /* _PPC_BOOT_DCR_H_ */